Fluorocarbon surfactants could change coal structure and improve wettability characteristics, thus, it plays a significant role in coal dust prevention and control.Composite dust suppressant based on fluorocarbon surfactant (FS-31) enhancement was developed, and the surface tension and contact angle characteristics were analyzed.Based on the infrar
Abstract Background This study documents cycad-human relationships in Mexico, Belize, Guatemala, El Salvador, and Honduras over the last 6000 years.The impetus was acute need for a better understanding of previously undocumented uses of cycads in this region, and the need to improve cycad conservation strategies using ethnobotanical data.We hypothe
In the present research, the GIS (Geographical Information System)-based RAG (Red-Amber-Green) color-coded search priority system was applied to the case study of the serial murders of the monster of Florence occurred between 1968 and 1985 in the click here Florence province (northern Italy).Through a predictive search priority scenario, the RAG ma
In this work, we study a Markov model of cyber threats that act on a computer system.Within the framework of the model the computer system is considered as a system with failures and recoveries by analogy with models of reliability theory.To estimate functionally-temporal properties of the system we introduce a parameter called the lifetime of the